Oil burner



Sept. 21 1926.

F. J. EANS ET AL OIL BURNER Filed Deo. 26, 1922 1713/.

IME/v Toms. Ffm/wr fl fwms. /lE//M/l c. H11/15E.

Patented Sept. 2l, 1926.

- UNITED STATES PM111,*1'1"#0FFICE#ff-i?- burner, certain -ERANKY J. EVANS AND HERMAN C, HANSEN, or MINNEAPOLIS sIGNoRs To WILLIAM' L. six,A 0E KANSAS CTY, MISSOURI MINNESOTA, AS

` y 011. BURNER.

Application filed December 26, 1922; Serial 1\To.`(.`08 .82',2.

This invention relates lto a liquid fuel burner or to an oil burner. Such burners are now generallybeing installed, both 1n stoves designed for cooking purposes and in heating plants for dwellings and other buildings.: ySuch burners are `very desirable, owing to the elimination of the use of coal with the attending diiiiculty'of shovelingthe same and removing the ashesfrom the furinaces Vith the yoil burners, a' fuel pla-nt easily handledjand all'dust, dirt and ashes iare, practically eliminated. One difficulty with certain types of burners now in use 1s that when the same are regulated so.y as to burn low, there isV Afaulty generation of the gas necessary" to the operation ofthe burner.. Y ,f

lt is an .object of this invention, therefore, :to provide sucha device asabove. vreferred to whichV comprises amain burnervand an auxiliary generating burner. i Y

It is a further .object of the invention to properly'dispose saidburne'rsand to provide the same with a commonregulating means adaptedv to bev .operated by' a thermostat or other 'temperature controlled device.

These and other objects a-ndadvantagesof ztheinvention.willk fullyJappear from the following `description .made .in connection withthe accompanying drawings; .in which likek reference charactersv referV to :the same parts throughout the different. views and in which, :i Y' Fig. 1r isa view infront elevation of the portions thereof being 'shown `in section; 1

' 'Figf'2 is arvertical section taken on the line 2 2 of 1, as 'indicatedby the arrows; and .7 l'

F ig. 3 is a vertical section through one of the regulating valvesof the burner. y

Referringfto. the drawings, an inlet pipe i 1 is shown'which, in the type of bur-ner disclosed', will beV connected to a liquid fuel or l oilsupply-tank and throughwhich the oil will,.ipreferably be" fed by gravity. This conduit'1fconnectswithf'the casing 2 atthe bottom of Isaid casingffand substantially at t'hestransve'rserenter thereof. Casing 2,'.as shown, hasa. chamberat the bottom portion and is alsopr'ovided with' upwardly 'extend- Y ing branches =3f which are connected at'their -f upper erids pipes @comprising elbows 5 pipes 16 and 17.

'and between the same.

having therein the elbow 8. The lower end of the conduit 7 is provided-with an elbow; 9 from which a horizontal pipe 10 leads having connectedthereto amain sprayinglhead or burner 11 and an auxiliary spraying head vor burner 12. Said burners or .heads have screwed inte .their upper ends, plugs 13 pro.- vided at their upper ends with small central passages l14C. The plugslare provided with conical passages below they passages 14 forming the valveseat forI needlefvalvefs- 1 5, whichvalves are in the form of rods and 'extend downwardly from saidburners-through The casing is provided; immediately above its lowerportion witha'n'open top pan 18 extending lat'eaeh side of the branches 3 The pipes 16 and17 extend through this pan and, as shown-in Fig. 2, are connected to the. burners ofheads: 11 and 12'. The'head 11 is thussubstantially in the form of a :standard T and the burner or head 12 is in the form of a standard Cross T having a short section of pipe screwedv into this open end whichrec'eives the plug 13.'- A pipe Yor conduit. 19 connects with the/pain 18, being threaded into a boss onthe lower side thereof; The conduits 16 'A and 171 are connected adjacent their lower portionsM with a strap member'formingfa-v support .for sa downwardly extendingl lbracket 520,-tojthe lower end ofrwhcli `is pivotefd af' lever 21. vThis lever is Vprovided with a-slot 28 adjacent one end throughwhich, and the-lower'end of one df the rods ,15.pas'sesa pivot connecting member 22 shown'` as asplitkey. :The lever member 25 also illustrated asa split key eX- t'ends through this slot and thelower end ,of

the 'other rod 15; The otherend of the .lever 21 extends some distance to the'sidexof the last mentioned lrod 15 and is -operatedfan'd adapted to'be connected' toan operating member which', in turn, may be conneetedzto 'a thermostat ory other temperature controlled means disposed in thefbuilding or lchamber adapted to be lieatedvb'y ,the burner. i The conduit 1 isprovided Withal regulaltf ing valve 26`having the usual operating handwheel and is further 'providedwithf'an emptying or vdischarge vvalve 27-0` disposed above the` valve 26,"'whicl 1f valve 427 `isfalson "provided-with ythe fusual hand wheel.`.

deflecting f, and heating member 28 .--extends between the upper lends .of #.theihranehes of the casing 2 and is of sufficient .Widthto entend over each ofthe-burners ...1l-fand 112. 5 In oper-ation, thee-oil (5r-other.liquidtuel will flow by grayity through thepipe '1 and will substantially till the casing v'2, branches 3 and the pipes 4, 7 and 10. A Wick or pad 29 of some :suitablermaterial is `placed in thepan 18 and When theburner is 'r'st:s tz'rrtedthe oil fwill be.. allowed to 4flow throughsthe heads .lland i l2 .-andthewaperture 14 intoffthegrpan'lSato saturaterthe mem.- b`er'2f9. Thesamecan.thenbeignited and the fia-me caused :thereby will extend .:u.p.

vwandlyeabout the .portions 3 .of the vkcasing and thefmenabers A'28,f'a-nd these rnernbergvto- ;gether With therpipes-fl and 7, will :be heated. viDuring this heating :fthe .valve A26 11W-,ill ;.be

is thuskburnedfiandv consumed, the lvalvfezfi26 '-,Will `again f opened. W hen vthe ameinbers e3erelid-fl? :are .heated the: oil there-inf is iheated and placedunder some pressure. "Theg oil "25 tends'to :vaporize :and :will iss-ue .inoafiine jet Aorfsp'ray througlrthe openingsfli.y Ihe spraying :will be directed yupwardlyagainst the "deilectin memberfQS which is =:heated fand #the spray of :fuel Vrn'fillghere 'be com- 730 fpletely rvaporized. Thisivaporized iuel'w'ill be'mixedwith'rthe surrounding air yand iginited '1 and the Tflame wwill .thus :spread out Iaround from v:,-under ithe `:member .28 and against `the walls:t of :fthe t casing' branches *35 piandftlie; pipes f4 f-.and ..7 )Whenifgthe'burner Lisi burning :atl largeY capacityLoraWith-f;a large tlame,ftherrodf;l 5 ofzthe mainoburnerl 1l Will *i 40 SeXtent.` 'fT-lheiother rod 'r-.lwlill tbe elevated ltlrratithe;apertureifinfthefvbiumer "127Will loe largely closed. VV-lfVhen'zthe:main burner is therefore #burning at all largeA part of vits capacityt-the tburner -1-.2 Willffber'largely shutio'ii. Whenitheg cha-miner` orplate toiheheated ..is"heated to cai' siicientcdegree the 'lever 21 -Wi'll'ibe :operated to: shut .oft 'fthe burnerzfll' and #reduce :the 'ztlame v'thereofaand at the sameV time the :auxiliary -.burn'er 1.12 4will be .turned ion thefsame degree. Itfwi'llrbe 'nnderstooldfy that thexburner '12. is of .smallertapacityz thanthe wburner l1 and, was described, is disposed x'eloser .toi thellspreading; .plate128- i' the-n the tacle. :The valve=-27 ,is provided/ in ease it is desired at .any1 timerztoddrain vthe .burner .fo1.cleaning, inspection or.other purpose. At this tirne,.the Valve 26 willlbeolosedqand the oil which iscontained Ain ,the ymembers T0 2, 3 and tmwillibe 4drained ont of lsaid valve.

From the above description it is seen that applicants have made a great improvement upon-:a devicerzofithe type described. By Aproviding' the auxiliary burner the main nburnerfean bemegurlated Withoutidanger of .reducingthe generatingleheat below the:.dezsiredlpoint. The re'guflationnfxthe main and .auxiliaryzburners' oangbefposit-ively;:madeoby :automatic means, '-illheuburner is. simpleain S0 constructionl andzcanzber madedargelyifrom istandaixd .parts. :It desired, the .member :2S :may r'loexmade of ffrebriek.orlanysuitable re- -fractory material :capable :of holding :coll- :siderable heat. Willen :theibnnner iseonee f5 assembled the .eamegofp erates Vvn itlr:no-'tronlole v4'there no `objectionable :smoking @for :accumulation `of A.soot er carbon @about any @of e the parte of iet-he .-:same :The invention has fbeeneamplly demonstrated :in actual epraeticeiand ffound.toiabez'-verys:successful.

It will, of course, be understood, thatl'varisons 'changes mayfebelrmade in.,the1form,deftails, VI.arrangement, and proportions tot the aparts Without departingg-ri'rom-the@scope :of w95 applicants invention, flWheh, 'generally -';stated, consists inotheainattershown andzdelascribed -Iand. set? forth rinzftlie :appended claims.

fithatLis-:tlaimedris: l l

l ,f y-Aifliqilid fuel burner: havin-g; in combination, aa substantially horizontal VYgpan, ilspaced pipes extending zverteaflly etherethrough, aaaburnerff, securedftoathetnpper fend ioffjpnezof saidepipes,ianleanxi'liarygbilrner;of

small capacitygsecured'f'gto1thexguppereridnof 105 .theotlieroofzzsaid pipesf-.andoextendi'ngtV above tiret mentioned gbnrne'r, r'egulatng Valves in said burners, and means disposed ',ibel'owvgsaid pa-n connected; to.-` saidM Valves'. for :.moi'ing; theesame-sotthat :Whenithe Yalveaof r 1:10

the first mentioned burner is opem thezyaflve :not :the Plast mentioned burner `is vpartially folosed, and'. Vice Versa, and 'a .substantially horizontal deflecting plate disposednabove 1 .bothi burners. Y y

2. Afliqnidl fuel burner-t havingf' inxcombii'nation, a :substantially horizontal ,'jpan, spaced :pipes .=,exten`ding vertically there- -.through,faburnerisecuredr tothe.` upperfend ofoone ofssaidlgpipes; an:auxiliaryburnernof i120 :ismallerficapacity secured to :the uppers end not :the other i of `lsafidfpipes fand extending paaborebsaid fiiirst Vmentioned `bunner, :regulat- .sing vaines forffsaid burners, uplungersX- :tending downwardly therefrom .through-125:

said; pipes, sa :bracket secured 'to .said pipes :'below jsaidipan, levfer vp iir'oted @to said s bracket tand? respectively-.connected to said .7 piangere lat,eaelbside l.of itstirlcrumnoneend of -fsad lever extending -llatera-lly .andffB-o adapted to be connected to a regulating means. i

3. A liquid fuel burner comprising an inlet conduit, a chamber in to the bottom of which said conduit delivers, said chamber .having upwardly extending branches at the sides thereof, said branches having a connection at their upper ends, a conduit leading downwardly from said connection, a main burner and an auxiliary burner connected with said last mentioned conduit and disposed substantially between the said branches, said auxiliary burner being higher than said main burner, and a horizontal spreading device disposed above and over both burners.

4. A liquid fuel burner comprising an inlet conduit, a chamber into the bottom of which said conduit delivers, said chamber having upwardly extending branches at the sides thereof, said branches having a connection at their upper ends, a pipe leading downwardly from said connection at one side thereof and between said branches, a vertically ydisposed cross T having one horizontal arm secured to the lower end of said pipe, a reduced burner head secured in the upper arm of said T, a conduit ex` Y tending downwardly from the lower arm of extending downwardly from the lower-` end of said latter T, a burner secured vin the upper end of said latter T and disposed at a lower' height than said first mentioned burner, a pan beneath said T through which said conduits extend adapted to form a priming pan, valves in said burners disposed therein and in said Ts, plungers eX- tending downwardly from said valves through said conduits, and means carried by said conduits beneath said pan for simultaneously adjusting said valves in opposite directions.

5. A liquid fuel burnery comprising, an inlet fuel conduit, a casing to which the same is connected, an upstanding main burner and an upstanding auxiliary burner connected to said casing, said auxiliary burner being of less capacity than and disposed at a greater height than said main burner, regulating valves forv said burners, regulating means for said valves extending downward therefrom, a lever fulcrumed between said regulating means and connected thereto at each side of said fulcrum, said -lever being adapted to be connected to a temperature control device whereby said burners will be oppositely regulated.

In testimony whereof we afix our signatures.

FRANK J. Evans. HERMAN o. HANsEN. 

